CODEWITHSUNDEEP
phpmysql
abiku
abiku

Reputation: 2246

Why mysql is removing slash from data?

Using simple function:

mysqli_query($link, 'update  table set field = \'variable text with \" slash\' ');
$res = mysqli_query($link, 'select field from table');
$res = mysqli_fetch_array($res);

when printing the result I have string without slash like: 'variable text with " slash'. When I preview the table in my localhost mysql client (SequelPro) I see that there are no slash also. Is it normal that mysql is removing this slash on insert automaticaly? Is it a way to prevent this? I need this slash there. Also I cannot use addslashes later after getting the value from db. Magic quotes are disabled on my php server.

Upvotes: 2

Views: 4281

Answers (4)

John Bupit
John Bupit

Reputation: 10618

This is because PHP is escaping the ". You need to escape the backslash too, like this:

mysqli_query($link, 'update  table set field = \'variable text with \\\" slash\' ');

Or you could use addslashes().

$query = addslashes('update  table set field = \'variable text with \" slash\' ')
mysqli_query($link, $query);

Upvotes: 2

echo_Me
echo_Me

Reputation: 37243

you have to use double slach \\

try that:

mysqli_query($link, "update  table set field = 'variable text with \\" slash' ");

Upvotes: 1

11684
11684

Reputation: 7517

I assume you want to keep the second backslash, as the first and third are needed to escape the single quotes. To keep the backslash, simply escape the backslash:

mysqli_query($link, 'update  table set field = \'variable text with \\" slash\' ');

You don't need to escape the double quote because this string is enclosed by single quotes.

Upvotes: 1

Strikeskids
Strikeskids

Reputation: 4052

The slashes you are adding are used to escape the quotes in the php string. You should add 3 slashes \\\" so that the first two make a backslash and the third one escapes the quote.

Upvotes: 8

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